The hills were covered with the shadow of it - That is, It made a shade, by its luxuriant foliage, on the hills in every part of the land; it seemed to cover all the hills.
And the boughs thereof were like the goodly cedars - Margin, as in Hebrew, cedars of God; that is, lofty, majestic cedars. See the notes at Psalms 65:9. The reference here is to the cedars of Lebanon, among the most majestic objects known to the Hebrews.